Living Style Guide

The Challenge

Context: Design drift is the enemy of long-term maintenance.

In many projects, the “Style Guide” is a static PDF that gets ignored as soon as it’s written. Developers add “one-off” CSS classes, and soon the site looks inconsistent. We needed a system that forced compliance.

Engineering Approach

We built the documentation into the codebase. The Elements Page is not a static mockup—it is a live rendering of the production component library.

• Live Import: The style guide imports the actual components (<Button>, <Chip>, <Admonition>) used in production.
• MDX Integration: We use MDX to mix documentation (Markdown) with live code (React/Astro components).
• Visual Regression: If a developer breaks a component style, it breaks on the Style Guide page immediately.

<!-- The Style Guide IS the code -->
<div class="grid grid-cols-3 gap-4">
  <Button variant="primary">Launch</Button>
  <Button variant="outline">Abort</Button>
  <Button variant="ghost">Retry</Button>
</div>

Impact

• Consistency: Every button, font, and color on the site is traceable to the tokens defined in this guide.
• Velocity: New features are built faster because we can copy-paste pre-validated patterns from the “Kit”.